For recruiters and hiring managers hiring a QA / Test Automation Engineer (mutation-tested gates).
Role fit, with proof you can run
QA / Test Automation Engineer (mutation-tested gates)
Mid-level and senior IC roles. W2 full-time or contract-to-hire, remote US (Arizona).
I write automated tests, then prove they bite: a planted failure must turn each gate red. Every public repo ships a fixed corpus, an evaluator and a pytest suite.
testcontrol PASSplanted defect FAILgatereceipt
Requirements and proof
| Requirement | Proof |
|---|---|
| Write an automated test suite that fails the build when a known failure slips through | Public adversarial-gate repo |
| Prove a test can fail by planting a defect and watching the gate turn red | Deterministic gate battery case study |
| Keep a fixed test corpus so a re-run returns the same result every time | Public adversarial-gate repo - Public COBOL probe repo |
| Check an answer against its source with a test, not by eye | Public RAG groundedness repo |
| Find a defect that a totals-only check cannot see | COBOL payroll forensics case study |
| Gate a release on test results so a failing check blocks the merge | Release-gate case study |
What could go wrong hiring me
No public browser or UI test suite. The proof is API, gate and corpus testing.
Counter: Public adversarial-gate repo
Every test corpus here is synthetic and written by me, not an outside benchmark.
Most proof is self-built, not run inside a team with a shared QA process.
Counter: Release-gate case study
Verify in 60 seconds
- Clone the public adversarial-gate repo and run: python3 evaluate.py, https://github.com/mpuodziukas-labs/llm-adversarial-gate
- Clone the public groundedness repo and run: python evaluate.py, https://github.com/mpuodziukas-labs/rag-groundedness-gate